Give access to individual node transformsgltf-c-api

1 files changed, 50 insertions, 4 deletions

diff --git a/AssetLoader/include/GLTFLoader.hpp b/AssetLoader/include/GLTFLoader.hpp
index 2b9afaf..9f3e10f 100644
--- a/AssetLoader/include/GLTFLoader.hpp
+++ b/AssetLoader/include/GLTFLoader.hpp
@@ -229,6 +229,16 @@ struct Camera
     float4x4 matrix;
 };
 
+struct GLTF_Transform
+{
+    float3                  Translation;
+    float _pad0;
+    float3                  Scale = float3{1, 1, 1};
+    float _pad1;
+    Quaternion              Rotation;
+    float4x4                Matrix;
+};
+
 struct Node
 {
     std::string Name;
@@ -237,14 +247,15 @@ struct Node
 
     std::vector<std::unique_ptr<Node>> Children;
 
-    float4x4                Matrix;
     std::unique_ptr<Mesh>   pMesh;
     std::unique_ptr<Camera> pCamera;
     Skin*                   pSkin     = nullptr;
     Int32                   SkinIndex = -1;
-    float3                  Translation;
-    float3                  Scale = float3{1, 1, 1};
-    Quaternion              Rotation;
+    GLTF_Transform          Transform;
+    // float3                  Translation;
+    // float3                  Scale = float3{1, 1, 1};
+    // Quaternion              Rotation;
+    // float4x4                Matrix;
     BoundBox                BVH;
     BoundBox                AABB;
 
@@ -386,6 +397,41 @@ public:
             0;
     }
 
+    virtual bool GetNodeIndex(const char* Name, Uint32* Idx) const override final
+    {
+        uint32_t i = 0;
+        for (auto* node : LinearNodes)
+        {
+            if (node->Name.compare(Name) == 0)
+            {
+                *Idx = i;
+                return true;
+            }
+            i++;
+        }
+
+        return false;
+    }
+
+    virtual void GetNodeTransform(Uint32 Idx, GLTF_Transform* Transform) override final
+    {
+        *Transform = LinearNodes[Idx]->Transform;
+    }
+
+    virtual void SetNodeTransform(Uint32 Idx, GLTF_Transform* Transform) override final
+    {
+        LinearNodes[Idx]->Transform = *Transform;
+    }
+
+    virtual void UpdateTransforms() override final
+    {
+        for (auto& root_node : Nodes)
+        {
+            root_node->UpdateTransforms();
+        }
+        CalculateSceneDimensions();
+    }
+
 private:
     void LoadFromFile(IRenderDevice*              pDevice,
                       IDeviceContext*             pContext,